Alexis Sanchez is being offered mega-money to go to China - and that is causing the major problem in his Arsenal contract stand-off.

Chinese clubs and agents have approached forward Sanchez ’s representatives and they are willing to pay wages of up to a staggering £400,000-a-week for what would be their Super League 's biggest transfer coup to date.

The Gunners are well aware of this interest from the big-spending Far East.

They cannot come anywhere near to matching that sort of salary, and the prospect is clearly being used as a bargaining tool as Arsenal seek to extend the star's current deal.

There is a growing concern the Chile international may not re-sign, even though talks are ongoing with him and Germany World Cup star Mesut Ozil.

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The club are hopeful of an agreement with Ozil, who is happy living in London and would get around £200,000-a-week.

But Sanchez, currently on £130,000-a-week, wants to be the Gunners' highest earner and is driving a very hard bargain with 18 months left on his contract.